EP 3163256 A1 20170503 - MAGNETIC ANGLE SENSOR COMPRISING TWO CONCENTRIC RINGS OF COPRIME MAGNETIC SPIRAL PORTIONS
Title (en)
MAGNETIC ANGLE SENSOR COMPRISING TWO CONCENTRIC RINGS OF COPRIME MAGNETIC SPIRAL PORTIONS
Title (de)
WINKELSENSOR
Title (fr)
CAPTEUR D'ANGLE
Publication
Application
Priority
EP 15191500 A 20151026
Abstract (en)
The present invention relates to an angle sensor including two scannable magnetic patterns on a side of a disc and two magnetic sensors. The two magnetic sensors are fixedly arranged relative to each other. The disk and the two magnetic sensors are rotatable relative to each other, around the rotations axis of the disk. The first magnetic sensor of the two sensors is associated to the first magnetic pattern, and is adapted to output a first electric signal when the first magnetic pattern and the first magnetic sensor rotate relative to each other. The second magnetic sensor of the two sensors is associated to the second magnetic pattern, and is adapted to output a second electric signal when the second magnetic pattern and the second magnetic sensor rotate relative to each other. The first magnetic pattern includes a number N1 of first portions of spirals which are regularly distributed in a first ring. The second magnetic pattern includes a number N2 of second portions of spirals which are regularly distributed in a second ring. The first ring and the second ring are concentrically arranged around the center point of the disc. N1 is different from N2, N1 is different from N2-1, N1 is different from N2+1, and N1 and N2 are coprime.
IPC 8 full level
G01D 5/14 (2006.01); G01D 5/245 (2006.01)
CPC (source: CN EP US)
G01B 7/30 (2013.01 - CN); G01D 5/145 (2013.01 - EP US); G01D 5/16 (2013.01 - US); G01D 5/2452 (2013.01 - EP US); G01D 2205/773 (2021.05 - EP)
Citation (applicant)
- DE 10038296 A1 20020214 - INNOVENT EV TECHNOLOGIEENTWICKLUNG [DE]
- DE 102005042616 A1 20070315 - BOURNS INC [US]
Citation (search report)
- [Y] WO 2014131434 A1 20140904 - SKF AB [SE]
- [Y] DE 102008008377 B3 20090924 - HARMONIC DRIVE AG [DE]
- [YD] DE 10038296 A1 20020214 - INNOVENT EV TECHNOLOGIEENTWICKLUNG [DE]
- [Y] EP 2302333 A2 20110330 - YASKAWA DENKI SEISAKUSHO KK [JP]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3163256 A1 20170503; EP 3163256 B1 20191204; CN 106959072 A 20170718; CN 106959072 B 20201124; US 2017115134 A1 20170427; US 9989381 B2 20180605
DOCDB simple family (application)
EP 15191500 A 20151026; CN 201610940434 A 20161025; US 201615334703 A 20161026